forestfunctions: Forest Functions Dataset (forestfunctions)

In emf: Ecosystem Multifunctionality: Richness, Divergence, and Regularity

Forest Functions Dataset (forestfunctions)

Description

A dataset containing 26 ecosystem functions measured across the FunDivEUROPE Exploratory Platform. All functions have been preprocessed to handle missing values and normalized to a range of [0,1] within each country, with higher values indicating better ecosystem functionality (except for soil_cn_ff_10 and wue, where lower values are desirable).

Usage

forestfunctions

Format

A data frame with 209 rows and 31 columns:

plotid

The unique identifier for each forest plot

target_species_richness

The planned/designed species richness of the plot

composition

Information about the species composition

region_centred_ba

Region-centered basal area

region_centred_coniferous

Region-centered coniferous proportion

earthworm_biomass.std

Biomass of all earthworms (g m-2)

fine_woody_debris.std

Snags and standing dead trees shorter than 1.3 m and thinner than 5 cm DBH, and all stumps and other dead wood pieces on the forest floor

microbial_biomass_mineral.std

Mineral soil (0-5 cm layer) microbial biomass carbon

soil_c_ff_10.std

Total soil carbon stock (Mg ha-1) in forest floor and 0-10 cm mineral soil layer combined

litter_decomp_day.std

Decomposition of leaf litter using the litterbag methodology (% daily rate)

nre.std

Nitrogen resorption efficiency, difference in N content between green and senescent leaves divided by N content of green leaves (%)

soil_cn_ff_10.std

Soil C/N ratio in forest floor and 0-10 cm mineral soil layer combined (smaller values are desirable)

wood_decomp_day.std

Decomposition of flat wooden sticks placed on forest floor (% daily rate)

root_biomass.std

Total biomass of living fine roots in forest floor and 0-10 mineral soil layer combined (g m-2)

lai.std

Leaf area index

leaf_litter_production.std

Annual production of foliar litter dry mass (g)

photo_eff_tot.std

Chlorophyll fluorescence methodology (ChlF)

tree_growth.std

Annual aboveground wood production (Mg C ha-1 year-1)

tree_biomass.std

Aboveground biomass of all trees (Mg C ha-1)

total_understorey_weight.std

Dry weight of all understory vegetation in a quadrant (g)

sapling_growth.std

Growth of saplings up to 1.60 m tall (cm)

regeneration_seedlings.std

Number of tree seedlings less than a year old

regeneration_juveniles.std

Number of saplings up to 1.60 m tall

wue.std

Resistance to drought, difference in carbon isotope composition in wood cores between dry and wet years (smaller values are desirable)

resistance_insects.std

Foliage not damaged by insects (%)

lack_browsing.std

Twigs not damaged by browsers (%)

no_pathogen_damage.std

Foliage not damaged by pathogens (%)

tree.growth.recovery.std

Ratio between post-drought growth and growth during the respective drought period

tree.growth.resilience.std

Ratio between growth after and before the drought period

tree.growth.resistance.std

Ratio of tree growth during a drought period and growth during the previous 5-year high-growth period

tree.growth.stability.std

Mean annual tree growth divided by standard deviation in annual tree growth between 1992 and 2011

Details

Missing values (approximately 5% of the data) were imputed using country-level mean values for each function. All functions were then normalized to a range of [0,1] within each country. For most functions, higher values indicate better ecosystem functionality, except for soil_cn_ff_10 and wue, where lower values are desirable.

Source

Scherer-Lorenzen, M., Allan, E., Ampoorter, E., Avacaritiei, D., Baeten, L., Barnoaiea, I. et al. (2023) The functional significance of tree species diversity in European forests—the FunDivEUROPE dataset [dataset]. Dryad Digital Repository. Available from: https://doi.org/10.5061/dryad.9ghx3ffpz

Examples

data(forestfunctions)
head(forestfunctions)

emf documentation built on June 8, 2025, 1:26 p.m.